Results 61 to 70 of about 211 (161)

Anode Slime Gained During Electrolysis Process of Secondary Copper Anodes [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2019
The aim of this research is to get a better understanding of the electrolytic refining process in order to yield the anode slime. Three types of secondary copper anodes are electro refined in an electrolytic system, where the electrolyte is an acid of ...
Nurten Deva, Musa Rizaj, Ismail Duman, Florian Kongoli   +3 more
doaj  

Impurity Behavior in Cast Copper Anodes: Implications for Electrorefining in a Circular Economy

Metals
The behavior of impurities in cast copper was investigated to simulate production with increased utilization of secondary sources within the framework of a circular economy.
Agustin Morales-Aragon, Daniel Sánchez-Rodas, Guillermo Ríos, Michael S. Moats   +3 more
doaj   +1 more source

Models for viscosity and density of copper electrorefining electrolytes

PHYSICOCHEMICAL PROBLEMS OF MINERAL PROCESSING, 2017
Viscosity and density of copper electrorefining electrolytes affect energy consumption and purity of cathode copper. Decreasing the viscosity and density increases the rate of falling of the anode slimes to the bottom of an electrorefining cell and increases the diffusivity and mobility of ions. Increasing the falling rate of the anode slimes decreases
Aji, Arif T., Rintala, Lotta, Aromaa, Jari, Lundstrom, Mari, Kalliomaki, Taina   +5 more
openaire   +4 more sources

Experimental Study for the Influence of Operating Parameters on Copper Electrorefining Process

Iraqi Journal of Chemical and Petroleum Engineering, 2018
Copper electrodeposition by electrorefining process in acidic sulfate media contains 40 g/l of cupric ions and 160 g/l of sulfuric acid was achieved to study the influence of the operating parameters on cathode purity, surface morphology, deposition rate,
Hayder M. Abbas, Sarmad T. Najim
doaj   +2 more sources

Electrochemical Behavior of Carbon Steel ASTM A36 in Diluted Pregnant Leach Solutions from Electrowinning of Copper

Metals
In Northern Chile, large amounts of highly corrosive solutions are currently generated in the process of cathode washing after completing the electrowinning or electrorefining process of copper.
Luis Cáceres, Alvaro Soliz, Felipe M. Galleguillos-Madrid   +2 more
doaj   +1 more source

Comparative environmental impacts analysis of technologies for recovering critical metals from copper anode slime: Insights from LCA

Environmental Chemistry and Ecotoxicology
Copper anode slime (CAS) is a byproduct produced during copper electrorefining process. It contains metals such as gold, silver, copper, selenium, tellurium etc.
Yu Li, Jenny Baker, Yaxi Fang, Haizhou Cao, Cameron Pleydell-Pearce, Trystan Watson, Sha Chen, Guangling Zhao   +7 more
doaj   +1 more source

Simulation Analysis of Potential Distribution, Ion Concentration Distribution and Natural Convection in Electrolyte During Copper Electrorefining

Journal of MMIJ
Numerical simulations are widely used to analyze the mass transfer in a cell with the aim of improving the efficiency of electrolysis processes. In this study, galvanostatic electrolysis with CuSO4–H2SO4 aqueous solution as the electrolyte and pure ...
Takumi TAKAICHI, Kohei YABUKI, Hideaki SASAKI   +2 more
doaj   +1 more source

Characteristics of solid waste from common generation source in nonferrous smelting industry reveal a new classification method. [PDF]

Heliyon, 2023
Li X, Yang Y, Die Q, Yang J, Song F, Huang Q.   +5 more
europepmc   +1 more source

Some Observations on Gold in the Weathering Profile at Garimpo Porquinho, an Artisanal Mine in the Tapajós Region, Brazilian Amazon [PDF]

Geologia USP. Série Científica, 2006
At Garimpo Porquinho (Tapajós Province, Brazilian Amazon) gold-bearing quartz veins containing sulfides occur in anarrow zone affected by hydrothermal alteration.
Sonia Maria Barros de Oliveira, João Henrique Larizzatti   +1 more
doaj  

Numerical Simulation of Cathode Nodule Local Effects

Metals
As one of the main factors decreasing current efficiency and product quality, the growth of nodules deserves attention in the copper electrorefining process.
Xiaoyu Wang, Chun Li, Jun Tie
doaj   +1 more source